Original document supply device for image forming device, and image forming device equipped with same

Abstract

This ADF 11 comprises an original document holding unit 31, a paper supply roller 51, and a lift plate drive unit 35. The original document holding unit 31 is capable of holding original documents and has a lift plate 41 capable of moving original documents to the loading direction. The paper supply roller 51 is capable of supplying an original document held in the lift plate 41. The lift plate drive unit 35 raises the lift plate 41 so that the original document abuts to the paper supply roller 51 when an original document is placed in the lift plate 41, and has the ability to lower the raised lift plate 41 when the next input operation is not performed within the prescribed time after an input operation is performed in regards to the operation panel 23.

Description

FIELD OF THE INVENTION [0001] The present invention relates to an original document supply device for an image forming device and an image forming device equipped with same. BACKGROUND OF THE INVENTION [0002] Image forming devices having copy functionality and equipped with an auto document feeder (hereinafter referred to as ADF) for supplying an original document into a document reading position have been becoming mainstream in recent years. In addition to the ADF being located opposite from the original document reading unit arranged on top of the main unit, it provides an original document holding unit and supplies original documents placed in the original document holding unit one sheet at a time into the document reading position of the original document reading unit. [0003] A conventional ADF is already proposed having documents set with a vertically moveable lift plate which moves into the loading direction. The lift plate normally is in stand-by in the lower position when th...

AI Technical Summary

Benefits of technology

The present invention relates to an original document supply device for an image forming device. The device includes an original document holding unit, a lift plate drive unit, and a paper supply unit. The lift plate can hold an original document and move it to the loading position. The device can supply the original document when an input operation is performed. The lift plate can be raised to abut the paper supply unit when an original document is placed in it, and it can be lowered if there is no input operation for a predetermined time. The device also allows the user to set the prescribed time for the input operation. The original document supply device can shorten the printing operation and make it easier for the user to print. The image forming device that includes the original document supply device can also make the printing operation faster and more efficient.

Problems solved by technology

Accordingly, because the lift is in a lowered state from the beginning, the next user attempting to print can immediately set the original documents thereby shortening the printing operation as a result.

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